7a99e1b2-c6a7-418d-851b-4ba35590c784

a impossible fluid mathematical geometry building displaystyle frac theta 2left[Rsqrt R^2+c^2+c^2ln left(frac R+sqrt R^2+c^2cright)right] made from a black velvet surface . photorealistic 4k. architectural photography --v 5.2